Ice crusher or breaker



` (No Model.)

J. Y. PAIRMAN..

ICE CRUSHBE OR BREAKER.

No. 308,?60. M Patented De0. 2, 1884.

SrArEs AT FFlCE cs CRUSHER OR BREAKER.

SPECFIGATION forming part of Letters Patent No;308,760, dated December 2,1884.

Application filed Scptem `Haven, in the county of New Haven, and

State of Connecticnt, have invented new and useful Inprovenents in Ice Crushers or Breakers, of which the following is a specification.

My invention relates to ice crushers or breakers, and especially to that class employing toothed or cutting shafts which may be revolved in opposite directions and at different speeds, such as was patented to me January 15, 1884, No. 29l,999; and the invention has for its object to provide for setting the ber 22, 1884. (No model.)

The shafts F rest in said bearings, and have a crank, G, attached to the end of one of them, and gear-wheels H I, of the same or varying diameter, connected to the opposite ends and neshing with each other. The knives J, secured to said shafts, are preferably formed of a series of arms or blades, b, having a 00111- mon hub, K, the edges of the'blades'being preferablycurved as shown. The opening in the length or see nan sa that wh err'te llbladesyaecurcd to the shaft they will set obliq ely to the length thereof, as illustrated. Tl -e washers L, which separate the series of lnives on each shaft, have their faces inclined knives at an oblique or other inclined angle to the length of their shaft, so as to bring t A'e points of the blades or knives of one shaft intermediate of those of the other shaft'wit lOllt the necessity of bending` the knives or b ades, whereby they are rendered stronger, a d will crush or break the ice very effectively The invention consists in 1313600113 ruction and conbination of parts, as will b e hereinafter particularly described and po inted out.

Figure l of the drawings is a si de View of the crusher with one of the leg removed; Fig. 2, a side view of the renove leg; Fig. 3, a plan view of the crusherpFig, a perspeca cross-sective of two of the -cutters;Fig. tion through a Washer.

In the drawings, the letter designates the hopper, preferably of the firm shown, with open sides B to its base, and a deliVery-chute, O, below the base, the said parts preferably being cast or otherwise forn ed in one piece. The sides of the base are p referably forned with flanges for the passage of bolts, which secure the bearings for the re' olving-shafts for the knives or blades-there lo, although such bolts may be made long eno ugh to pass froni one side through to the oth er 'of 'the hopper. The bearings D for the shaf ;s form removable sides for the openings B i the-hopper, and are made with holes a of 'he same diameter on both sides of the hopp er, for the ends of the shafts to turn in, saidholes being either drilled or cast in the` be rings, as most convenient or desirable. Tl ese bearings form the upper part of the legs and thus render the crusher Very steady wh ile being operated.

I to correspond to the set of the knives. The knives on one shaft are placed so that their points or ends will be intermediate the knives of the oth'er shaft, or opposite the spaces between such knives, and yet preferably so as not to mesh therewith, as illnstrated. The blades or knives on one shaft will incline or eXtend froni the shaft in an opposite direction to those of the other shaft, so as to more efi'ectually crush or break the ice, as shown in Fig. 3 of the drawings. This manncr of applying and arranging the knives Or blades renders them very effective in crushing or breaking the ice, and perniits them to be made Very strong.

It is obvious that the openings in the hubs might be made straight through them instead of obliquely, and the inclined faces of the washers be relied on to give the inclination to the blades or knives, the openings in such case being large 'enough to allow the necessary play or adjustnent of thehubs; but the other form is the best, as the knives are then more firnly or rigidly held to their position.

The several parts are cheap to construct, and whenever necessary one part can be read ily supplanted or replaced by another.

I am aware that ice-crushers have been composed of ahopper containing revolving shafts provided with alternating ice-crushing knives, and also that in machines for various purposes saws and similar cutters have been set at an obliqne angle to the axis of the shaft which carries them; and, thcrefore, I do not wish to be understood as broadly claiming such features, my invention conprising simthe hub for the shaft is formed obliquely to ,w

IOO

ply the specific Construction and comhination of parts described and claimed, whereby a sin1p1e,cconomca1, effioent, and portebleceorusher is produced.

5 Having thus described my nventon, What I claim is* A ortable ce-crushng apparatus consistmg of a hopper for recevng the ce, two parallel revolvng shafts journaled in the ends of 'IO the hopperand geared together at one end, and a series of ice-crushing knves on each shaft set obliquely to the axis thereof, the series of oblque knives on one shaft alternatng With those on the other shaft, suhstantially as and for the purpose described.

In testmony whereof I zLffiX my sign ature in presence of two witnesses.

J. YALE FAIRMAN.

YVtnesses:

CHAS. E. WHEDON,

I. B. KLocK. 

